Sound-insulated camera



June 12, 1934. s.-. BALL SOUND INSULATED CAMERA Original Filed June 3. 1929 2 Sheets-Sheet 1 IN VEN TOR. yea/g6 /V. 54 WM/145M 77% ATTORNEYS.

June 12, 1934. BALL Re. 19,204

SOUND INSULATED CAMERA Original Filed June 3, 1929 2 SheetsSheet 2 IN V EN TOR.

ZZ L% A TTORNEYS Reissued June 12 1934 UNITED STATES PATENT-OFFICE 19,2 04 SOUND-INSULATED CAMERA George Norman Ball, Glendale, Calif assignor to Warner Bros. Pictures, Inc Los Angeles, Calil'.,

a corporation Original No. 1,779,653, dated October 28, i930, Serial No. 367,909, June 3, 1929. Application for reissue August 18, 1931, Serial No. 557,929

21 Claims. (01. 8816.2)

- camera in synchronism. Thus, in addition to the noise of operation of the camera proper, there are other noises resultant from the power transmitting mechanism of the camera. I

It is the primary object of this invention to provide sound insulating shields for the camera and associated parts. It is a further object of this invention to provide a' sound shield of the character described which provides for easy access to the camera reels and other parts; and it is a still furiher object of this invention to provide shields easy of assembly and disassembly.

These objects together with other objects and corresponding accomplishments are obtained by means of the embodiment of my invention illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view of a complete camera equipped wi'h my improved sound insulating housing; Fig. 2 is a perspective view showing a part of the housing removed; Fig. 3 is an elevation of a fragment of the housing as seen 7 on plane 3--3 of Fig. 1' with thelens turret in section; Fig. 4 is a vertical section through a fragment of the housing and the propeller shaft, panel as seen on plane 4-4 of Fig. 2; Fig. 5 is a cross section through the standard as seen on the line 55 of Fig. 2.

Referring with more particularity to the drawings, a standard camera is shown mounted upon a tripod A, the camera comprising a camera box 13 upon which is mounted a reel magazine C. The

lens is indica ed by D and a propeller shaft and conduit housing therefor is marked E.

The tripod is provided with an adjustment head 10 supporting a base 11. The base forms the bottom of the sound casing and extends beyond 7 the camera box B to form a lateral shelf supporting a standard 12. The standard overhangs ihe camera side wall and has an eye 13 supporting a rod 14.

The camera box is enclosed partly by a rear wall 15 formed of insulating material, to which is hinged'an outstanding wall 16. The reel magazine is covered by a longitudinally divided shield box, the line of division being substantially me--, dial, that is, at the shelf side wall of the camera box. It comprises two sections C and C These sections are substantiallyalike. Section C comprises a side wall 17 with a dependent extension 18 to form a side wall for the camera box shield. A front .wall 19 has an underhanging portion 20 with a-semi-circular recess'21 for accommodating the lens turret D. A rear wall 21 is adapted to meet hinged wall 16. A top wall 22 completes section C This section is integral and is preferably. formed of sponge rubber with a wooden framework for stifiening. The framework is in dicated generally by 23. Section C is similarly constructed. It will be noted from an inspection of Fig. 1 that the junction line between wall- 20 and the corresponding wall is not exactly at the center of the camera front. This is because the turret is not at the center. The rear wall 15 is provided with a Window 24 and a panel opening to receive a detachable panel 25 of sponge rubber stifiened by a metallic frame 26. An

opening 27 for passage of the conduit housing on the propeller shaft is provided. The lens turret has a sponge rubber disk 28 with a stiffening ring of metal 29. shield are books 30 to engage rod 14. ese hooks are so arranged as to be slipped over rod 14 and also to serve as hinges whereby to swing the sections 0 and C outwardly to expose the camera box and mechanism. Clasps 31 are provided to fasten the sections of the casing together.

At the top walls of the magazine Depending from the base 11 is an apron 32 preferably formed of rubber sheeting. This may be gathered together about the tripod head and held by a split clamp ring 33 so as to envelop and is covered by rubber 35 so as to deaden the' sound carrying character of the standard.-

. The assembly of the casing is obvious. access to either side of the camera the clasps connecting the sections of the shield box section to the remaining portions are unfastened. The section may then .be swung about rod 14 or removed, if desired.

What I claim is: l 1. A motion picture camera structure-having a camera and a base plate a standard upstanding from the base plate, a rod extending from the upper end of said standard longitudinally of said camera: a casing having sound proof walls to encompass said camera comprising a longitudinally To gain divided sound shield box to cover said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod,

83' sections of said hold the box sections in place, and clasps to secure the sections of said boxtogether.

2. A motion picture camera structure having a cameraprovided with a lens turret and a base 5 plate, a standard upstanding from the base plate,

a rod extending from the upper end of said standard longitudinally of said camera: a casing having sound proof walls to encompass said camera con'iprising a longitudinally divided sound shield box to cover said reel magazine-including front and side walls and a top wall, the juncture of the divisions of said top wall meeting at said rod,

' hooks on the divisions of said top wall to engage said rod and hold the box sections in place, registering semi-circular recesses in the adjoining edges of the front walls ofsaid sound shield box to accommodate said turret, and clasps to secure said sections together; i

3. A motion picture camera structure having 2.0 a camera box, a reel magazine mounted on the top thereof, a base plate, a standard upstanding from the base plate, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls 26 to encompass said camerabox and reel magazine comprising a rear wall, a longitudinally divided sound shield box to cover said-reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the so divisions of said top wall to s me said rod and hold-the sound shield box sections in place, the sections of said sound shield box having depending side and front walls for said camera box to join with. said rear wall, and clasps to secure the sound shield box and said rear wall together. I 4. A motion picture camera having a camera box, a'reel magazine mounted on the top thereof, 'a base plate extending to one side of said camera 40 'box to provide a shelf, alens turret on said camera box, a standard upstanding from said shelf, a

rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls comprising a rear wall for the camera box, a longitudinally divided sound shield boxfor mounting on said base plate to cover said'reel magazine and having a top wall,

.the jimcture of: the divisions of said top wall meeting at said rod, hooks on the divisions of said lio'top wall to engag Said rod and hold the sound shield box sections in place, said sound shield box including, depending front and side wall portions to complete the lateral enclosure of said camera box, semi-circular recesses in the adjoining front wallportions to encompass the base of said lens t. and clasps to secure the walls of said shi d box to said casing and thereby to hold the sections of said box together.

5. A motion picture camera having a camera 00 box, a reel magazine mounted on the top thereof, a base plate, astandard upstandingfrom said base plate, a sound proof conduit covered propeller shaft, a rod extending from the upper end of said standard longitudinallv of said camera 1 box: a cssinghaving soundproof wallstoencompass said camera box and reel magazine comprlsinga rear wall, a longitudinsllydlvided sound shield box to cover said reel magazine and having a top wall, the juncture of, the divisions of said top'wall meeting atsaid rod, hooks on the .divisions-ofsaidtopwalltoengagesaidrodand hold sound shield box sections in place, the sections of said sound shield box having depending side and front walls-forsaid camera box to join with said rear mm, a removable soundp oof panel in said rear'wall for passage therethrough of said propellershaft, and'clasps to secure the sections of said sound shield .box and said rear wall together.

6. A motion picture camera having a camera box, a reel magazine moiinted on the top thereof, a base plate extending toone side of said camera boxtoprovide a shelf, a lens turret on said camera box, a sound proof conduit covered pro peller shaft, a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls comprising a'rear wall for the camera box, a longitudinally divided sound shield box for mounting on said base plate to coversaid-reel magazine and having a top the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions-of said top wall to engage said rod and hold the sound shield box sections in place, said sound shield box including depending front and side wall portions to complete the lateral enclosure of said camera, semi-circular recesses in the adjoining front wall portions to encompass the base of saidlens turret, a removable panel in the N rear wall for passage therethroughof said propeller shaft, and clasps to secure the walls of said shield box to said casing and thereby to hold sections of said box together.

"I. A motion picture camera having a camera box, a reel magazine mounted on the top thereof, a base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls comprising a rear wall for the camera box, a hinged wall outstanding from said'rear wall, a longitudinally divided sound shield box moimted on said baseto'encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield box sections in place. the sound shield box sections including depending side and front wall portions to complete the lateral enclosure of said camera box and rear wall portions to join said outstanding wall,. andclasps to secure the sections of said shield box to said base and to said outstanding wall. f.

8. A motion picture camera having a camera box,areelmagazinemountedon thetopthereof, a lens turret for said camera box, a base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a rod extending from the upper end'of said standard longitudinally of s'aidcamera box: a casing having sound proof walls comprising a rear wall for the camera box. a hinged wall outstanding from said rear wall, a longitudinally divided sound shield box for mounting on said base to encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield box sections in place, the sound shield-box sections includ'ng depending side and front wall portions to complete the lateral enclosure of said camera box and rear wall portions to join said outstanding wall, registering semi-circular recesses in the adjoining edges of sa d front wall portions for accommodation of said lens turret, and clasps to secure the sections of said shield'box to said base and to said outstanding wall. ,15

9. A motion picture camera having a camera box, a reel' magazine mounted on the top thereof, a base plate extending to one side of said camera box to provide a shelf, a rod extending from'the upper end of said standard longltudinally of said camera box; a casing having sound proof walls comprising a rear wall for the camera box, a hinged'wall outstanding from said rear wall, a longitudinally divided sound shield box for mounting on said base to encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield box sections in place, the sound shield box sections includ ng depending side and front wall portions to complete the lateral enclosure of said camera box and rear wall portions to join said outstanding wall, a removable panel in said rear wall having an opening for the passage therethrough of said propeller shaft, and clasps to secure the sections of said shield box to said base and to said outstanding wall.

10. A motion picture camera having a camera box, a reel magazine mounted on the top thereof, a lens turret for said camera box, a base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally of said camera box; a casing having sound proof walls comprising a rear wall for the camera box, a hinged wall outstanding from said rear Wall, a longitudinally divided sound shield box for mounting on said base to encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, books on the divisions of said top wall to engage said rod and hold the sound shield box sections. in place, the sound shield box sections including depending side and front wall portions to complete the lateral enclosure of said camera box and rear wall portions to join said outstanding wall, recesses in the adjoining edges of said front wall portions for accommodation of said lens turret, a removable panel in said rear wall having an opening for .the, passage therethrough of said propeller shaft, and clasps to secure the sections of said shield box to said base and to said outstanding wall.

11. A motion picture camera structure having a camera and a base plate, a standard upstanding from the base plate, a rod extending from the upper end of said standard longitudinally of said camera; a casing having sound proof walls to encompass said camera comprisinga longitudi nally divided sound shield box to cover said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting atsaid rod, hooks on said top wall to engage said rod and hold thebox sections in place, clasps to secure the sections of said box together, and an apron of flexible sound proof fabric depending from said base and adapted to envelope the headof tripod; I

12, Amotion picture camera structure having a'camera provided with a lens turret and a base plate, astandard upstanding from the base'plate, a rod extending from the upper end of said, stand ard longitudinally of said camera: a casing having sound proof walls to encompass saidcamera comprising a longitudinally divided sound shield box to cover said reelmagazine including, front and sidewalls and a top wall, the juncture of the divisions of said top wall'meeting at said rod,

to accommodate said turret,.clasps to secure the sections of said box together, and an apron of flexible sound proof fabric depending from said base and adapted to' envelope' the head of a tripod.

13. A motion'p'icture camera structure having a'camera box, areel'magazine mounted on the top thereof, a base plate, a standard upstanding from the base plate, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls toencompass said camera box and reel magazine comprising a rear wall, a longitudinally divided sound shield box to cover said reel magazine and having atop Wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisionsof said top wall to engage said rod and hold the sound shield box sections I in place, the sections of said sound shield box having depending side and front walls for said camera box to join with said rear wall,clasps to secure the sections of said soundshield box and said rear wall together, and an apronof flexible sound proof fabric depending from said base and adapted to envelopethe head of a tripod.

14. A motion picture camera having a camera box, a reel magazine mounted on the top thereof, a base plate extending to one side of'said cam,- era box to provide a shelf, a lens turret onsaid camera box toprovide a shelf, a standard upstanding from 'said shelf, a rodextending from the upper end of said standardlongitudinally of said camera box: a casing havingsound proof walls comprising arear wall for the camera box,i a longitudinally divided sound shield box for mounting on said base plate to, cover said reel magazine and having atop wall, 'thejuncture of the divisions of said top wall meeting at 'said rod,

together, and, an" apron of flexible sound proof fabric depending from said base and adaptedfto envelope the head of a tripod. v

1 5. A motion picture camera having a'ca-mera box, a reel magazine mounted on the topthereof,

a base plate, astandard upstanding'from said" base plate, a sound proof conduit covered propeller shaft, a rod extending from the upper end of said standard longitudinally of saidcainelrai box: a casing having soundproof conduit covered propeller shaft, a rodexter'iding from thenpper end of said standard longitudinally of saideamera box: a casing having. sound proof walls Ttoencompass said camera box and reel magazine comprising a rearlwalh a longitudinally divided sound shield box to cover said reel magazine and having a top wall, the 'juncture of the divisions of Said top wall meeting at said rod, hooks onthe divisions of said top'wall to engage said rod'and hold the sound shield box sectionsinpla ce, ,the'sections ofv said soundfshieldbox having depending side and frontwalls r01 said camera box to join "with said rear vvallfa'. removable sound proof .panel in said rear wall for passage therethrough of said propeller shaft, clasps to secure the sections of said sound shield box and said rear wall together, and an apron of flexible sound proof fabric depending from said base and adapted to envelope the head of a tripod.

16. A motion picture camera having a camera box, a reel magazine mounted on the top thereof, a base plate extending to one side of said camera box to provide a shelf, alens turret on said camera box, a sound proof conduit covered propeller shaft,

a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls comprising a rear wall for the camera box, a longitudinally divided sound shield box for mounting on said base plate to cover said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield box sections in place, said sound shield box including depending front and side wall portions to complete the lateral enclosure of said camera, semicircular recesses in the adjoining front wall portions'to encompass the base-of said'lens turret, a removable panel in the rear wall for passage therethrough of said propeller shaft, clasps to secure the walls of said shield box to. said casing and thereby to hold sections of said box together, and an Timon of flexible sound proof fabric depending from said base and adapted to envelope the head of a tripod.

17. A motion picture camera having a camera box, a reel magazine mounted on the top thereof, a I

base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally. of said camera box: a, casingv having sound proof walls'com prising a rear wall for the camera box, .a hinged wall outstanding from said rear wall, a longitudinally divided sound shield box mounted on said base to encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield' b'ox sections in place, the sound shield box sections including depending side and front wall portions to complete the lateral enclosure of said camera box and rear wall portions to join said outstanding wall, clasps to secure the sections of said shield box to said base and to said 7 outstanding wall, and an apron of flexible sound proof fabric depending from said base and adapted to envelope the head of a tripod.

18. A motion picture camera'having a camera box, a reel magazine mounted on the top thereof, a lens turret for said camera box, a base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a 'rod extending from the upper end of said standard longltudinallyof said camera box: a casing having sound proof walls comprising a rear wall for the camera box, a hinged wall outstanding from said rear wall, a longitudinally divided sound shield box for mounting on said base to encompass said reel e and having a top wall, the juncture rod, hooks on the divisions of said top wall to engage saidrod and hold the sound shield box sections in place, the sound shield box sections including depending side and front wall portions to complete the lateral enclosure of said camera box and rear wall portions to join said outstanding wall, registering semi-circular recesses in the adjoining edges of said front wall portions for accommodation of said lens turret, clasps to secure the sections of said shield box to said base and to said outstanding wall, and an apron of flexible sound proof fabric depending from said base and adapted to envelope the head of a tripod.

19-. A' motion picture camera having a camera box, a reel magazine mounted on the top thereof, a base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls comprising a rear wall for the camera box, a hinged wall outstanding from said rear wall, a longitudinally divided sound shield box for mounting on said base to encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield box sections in place, the sound shield box sections including depending side and front wall portions to complete the lateral enclosure of said camera boxand rear wall portions to join said outstanding wall, a removable panel in said rear wall having an opening for the passageetherethrough of said propeller shaft, clasps to secure the sections of said shield box to'said base and to said outstanding wall, and an apron of flexible sound proof fabric depending from said base and adapted to envelope the head of a tripod.

. 20. A motion picture camera having a camera box, a reel magazine mounted on the top thereof, a lens turret for said camera box, a base plate extending to one side of said camera box to provide a shelf, a standard upstanding from said shelf, a rod extending from the upper end of said standard longitudinally of said camera box: a casing having sound proof walls comprising a rear wall for the camera box, a hinged wall outstanding from said rear wall, a longitudinally divided sound shield box for mounting on said base to encompass said reel magazine and having a top wall, the juncture of the divisions of said top wall meeting at said rod, hooks on the divisions of said top wall to engage said rod and hold the sound shield box sections in place, the sound shieldbox sections including depending side and front wall portions to joint said outstanding wall, recesses in the adjoining edges of said front wall portions for accommodation of said lens turret, a removable panel in said rear wall having an opening for the passage therethrough of said propeller shaft, clasps to secure the sections of said shield box to said base and to said outstanding wall, and an apron of flexible sound proof fabric depending from said base and adapted to envelope the head of a tripod.

21.] In acoustic-cinematographic apparatus, the combination of a portable motion picture camera which produces undesirable noises in the course of its normal operation, a sound proof enclosure therefor provided with a-window, and comprising a skeleton framework, sound proof material coverof the divisions of said top wall meeting at said ing the openings in said skeleton frame, and a portable common support for said camera and said enclosure, whereby the camera, the enclosure and the support are easily and readily portable as a unit.

- GEORGE NORMAN BALL. 

